Furnace or heater



PATENT FFICE CHARLES D. HOXVARD, OF SYRAOUSE, NEW YORK.

FURNACE OR HEATER.

SPEGIFIGATION forming paart of Letters Patent N0. 616,844, dated.December 27, 1898.

Applicaoion filed August 26, 1898. Serial N0. 689,605. (N model.)

T0 all whom z't mag concern:

Beit known thao I, CHARLES D. HOWARD, a citizen of the United States,residing ab Symeuse, in the eounty 0f Onondaga and State of New York,have invented ceroain new and useful Improvements in Furnaees or Heatersand I do hereby decleue the following 110 be a f all, clear, and exaetdescription of the invention, such aus will enable others skilled intzhe art to whieh it appertains t0 make ancl use the same.

M'y invention relates 130 that dass 0f beating-furnaoes in which eibherhot air or bot water, 01 both, may be employed as the heata-.

ing medium; and in consists generally in the construcon and novelarmngemenn and combllll0ll of the various pambs, as Will be hereinaftermore fullydescribecl, and pointed 01111 in the claims. 1

The primary object of the inventiou is to produee a furnace 01 he aterwhich Will furnish a maximun1 amount 013 heat for the expenditme 0f aminimurn amount 0f fueL Anoher object of the invention is 110 so 0011-struet the furnace 01 heaber filmt it; may be readily adapted forhot-air 01 hot-water beating 01 a combination 0f both hol; air and hol;waner.

These and other objeets may be attained by means of the deviceillustrated in the aecompanying clrawings, in .which- Figure 1represents a longitudinal vertaical section 0f my improved furnace; Fig.2, a transverse verticalseetion of Ehe sztme, and Fig. 3 a horizontalsecion on line 3 3 0f Fig. 1 With the grate rernoved.

Referring t0 the several views, the numeral lindicates the fire-pofu,whieh is provided with a, suitable graute and shaking attaehments. Belowthe fire-pot, suitably arranged and supported, is a removable ash-pit 2,open ab 'lS freut end to correspond. with the opening in the front Wall3 of thefurnace or heater, so as to provide f0r the ready removal of theashes.

Surrounding and supporting the fire -pot and ash-pit is a shell 4,approxirnately oval in eross-section, having a corrugated 01' flutedperipheral surface for the purpose of inereasing its heat-givingcapaeity. The rear end of the shell is prefembly convex ancl is providedwith 3 smokeexit 5, while the freut encl is open and is seourelya-ttaehed byits end 001- rugation to the front Wall of the furnace 01heafner, as shown ab a, Figs. 1 and 3. The outer side Walls 01: thefire-pot are formed with vertical ribs 6, which fit snugly against theinner convex portions of the corruga ted surfaee of the Shell 4, and asthe sides of the ash-pit conform 130 the eurvature of said inner conv6xportions of the eorrugated surface continuous flues 7 are formed betweenEhe inner side walls of the sl1ell and nhe outer side Walls of t-hefire-pot and ash-pit, the diameter 0f the upper portion 01": said fluesbeing increased by the ribs 6 0f the fire-pot, through which flues theproducts 0f combusoion pass Clown through flues 7 beneatl1 'ohe ash-pitand laben up into tshe chamber 8, whioh is formed. between the innerrear Wall 0f said she1l and tl1e oute1 rear Walls of the fire-box andashpit, and thence 130 the exit 5, as shown in Fig. 1.

The nu meral 9 indicates the base 0f Ehe furnace 01 heater, in whichbase tl1e front: Wall 3 is tightly and seeurely seaced and from whichtl1e rear end of the Shell 4 is rigidly supported by a brace 10,T-shaped in erosssection. The shell 4, With its contained firep ot andash-pit, is inclosed by an air and Walter t-ight double-wall casing 11,whieh is tightly seated in the Oase 9 and attached at ibs fron 130 thefronta Wall of the furnaee o1 heater. The rear end of the easing isprovicled with an opening 12 opposite Lhe exit1 5 0f the shell 4,through Which projects a 001- lar 13, secured 130 said shell andsurrounding said exit. 'lhe space between 'he casing and shell forms achamber 14, which may be either f0r hot air 01' hob walzen WVhenemployecl as a hot-air chamber, the casing is provided with a properexit, as shown ab 14 Fig. 1. If hob water is to be the heating medium,the easing is provided with lshe usual connections, to whicl1 the supplyand reourn pipes are counected.

The front Wall 3 is provided with the usual clmft-regulating doors 13and 14' and fuelfeeding door 15, and nhe fire*pot is provided -With adamper 16, which when open gives a l1eater, just above the g1ate, is areetangularsheped concluit 17, having an opening in its bottom closed bye check-damper 18, which is operatecl by e rooker-arm 19. The eonduit-17 is open et boch ends and receives eir from the ash-pit. 'lo eheekcombustion, the damper 18 is opened, and to inorease oombustion thedampe1 is closed. It Will be apparent that this ooncluit also serves esa clust-fiue when the grate is being shaken, es loy open- :ing thedemper the arising dust Will be earried into seid concluit, and thus beprevented from ooming out into the room 01 apartment.

The operation of my improved furnace 01 heater Will be reaclilyunderstyood from the foregoing clescription, it only being necessary tostete thet the ei1* 01 weiser in ehamber 14 is quiokly heated to a hightemperature by reason of the pecnlierly construetecl and erranged shell,whieh holds the produots 0f oombustion while they are being direete downth1ough the fiues 7, under 1;he ash-pit, and on1; into the chamber 8 to1:he sxnokesteok.

In providing a heeting 1nedium of hol; ai1 and hob water the fire-potmay be made 1101- 10W and provided with suitable eonnections forettachrnent 150 a sonrce of supply encl with radiator supply and 1eturnconneotions.

Various modifications o'f my invention 1nay be. maclesuch for instance,es construeting the Shell in two parts and bolting then1 130- gethe1, esshown in Fig. 2withont departing from its spirit or sacrifioing theprineiple thereof.

Having thus fully desoribed my invention, what I claim, and clesire toseonre by Letters Patent, is

l. In a furnaoe 01 heater, the oombinauion with the freut thereof, of aShell heving a 001- rugated peripheral surface ancl e plain back, afire-pot and ash-pib supported within the shell and so erranged thatoontinuous hob-eh flnes are formed vertieally along the sicles of thefirepot ancl ash-pit, substantially es specifiecl.

2. In a furnaee 01 heete1, the combination with the front thereof, of ashell, oval in crossseotion, having a corrugated peripheral surfece andplain back, a fire-pot .?Lll(1 ash-pit supporbecl within the shell andso arrangecl relative to the oorrugauions thereof, es 130 form verticelholt-eh flues, nhe fire-pot being formed Wit;h means Which eoperate withthe corrugaions of the shell to inerease the diameter of the upperportion of seid flues, and a oasing surrouncling the shell 130 form ehotair 01 hot-weter ohamber.

3. In e fu1nace 01 heate1, the combination With uhe frontthereof, of ashell, oval in erosssection, having a oorrugated peripheral surfaee enclplain back, a fire-pot end ash-pi supportecl within nhe shell, ancl soarranged relative to the oorrugauions thereof, es to forrn vertieelliot-air flues, tl1e fire-p'ob being" formec'l Wibh rneans whiehoope1ate with the eorrugations of the shell to increase the (liameter ofthe upper portion of saicl fiues, e casing surrounding the shell, and aclrafta eonduit 01 ohember, situated ab the front of the furnaoe o1heeter, provided witha eheck= cla1nper.

4:. In a furnece or heeter, the combination of e vertically-corrugetedshell, oval in crosssection, a fire-po encl ash-pit supportecl loyresting against the inwardly-extencling surfeces of the oorrugations oft;he shell, ancl forming With seid shell vertical hot-air fiues and alongitudinal ehamber er flue beneeth the ash-pit, and a cesingsurronnding the Shell, substaintially es speoified.

5. In a furneee, thecombinetion wit;h afirepob end a removably-snpportedash-pit l1ew ing a elosed hootom, of a shell having eorrugated sicles,top ancl bootom, inclosing seid fire-pot and esh-pit, forming a verbioalehember surronnding the seme on the sides and 1ea1 portions thereof, endhorizontal ehani bers, one above the fire-pot; ancl one below theash-pit, whereby the produots of oombustion are causecl 'Co pass downthrough the vertioal passege into the lower horizontal chamber andthenoe 130 the outlet.

G. In a furnaee, the oombinetion Wi'h oho fire-pot and aremovably-supported ash-pit having a elosed bottom, of a two-part shellhaving corruga'ed sides, top end bottom, inolosing seid fire-pot andash-pit, seid shell arranged relabively co the fire-pot end ashpi1; 110forrn a vertieal ehamber surrounding the same on the sides and rearportions thereof, and horizontal ohambers, one above seid fire-pot endone below seid ash-pit, and division-plates between oho fire-pob anclthe sides of the oorrugated shell, whereloy fines ere formed throughwhioh the products of eombustion are conducted down into tl1e lowerhorizontal charnloe1 and thence 110 the snnoke-outlet.

7. In a furnaee, the eornbination with the fire-pot end aremovebly-supported ash-pit;

having a elosed bettono, 01: e Shell heving CHARLES D. IIOVVARD.

Vitnesses:

E. M. ll/IOORE, E. I. CRANE.

